Bug 817078
| Summary: | libvirtd crashing on rhel 6.3 beta vm | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Derek Higgins <derekh> |
| Component: | libvirt | Assignee: | Jiri Denemark <jdenemar> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.3 | CC: | acathrow, dallan, dyasny, dyuan, mzhan, rwu, syeghiay, whuang, ydu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-0.9.10-16.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-20 06:57:50 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2012-0748.html |
Description of problem: While starting a vm on rhel 6.3 Beta (which itself is a vm), libvirtd crashes Version-Release number of selected component (if applicable): libvirt-0.9.10-11.el6.x86_64 How reproducible: every time Steps to Reproduce: 1. create a rhel 6.3 vm 2. using this vm as a host attempt to start another vm 3. Actual results: libvird crashes Expected results: nested vm should start Additional info: this symbolic link was created on the virtual host /usr/bin/qemu-system-x86_64 -> /usr/libexec/qemu-kvm output from gdb attached to libvirtd Program received signal SIGSEGV, Segmentation fault. 0x0000000000476292 in qemuBuildCpuArgStr (conn=0x7f0118000bd0, driver=0x7f0128006430, def=0x7f0128133590, monitor_chr=0x7f012804e5d0, monitor_json=true, qemuCaps=0x7f0128133a30, migrateFrom=0x0, migrateFd=-1, snapshot=0x0, vmop=VIR_NETDEV_VPORT_PROFILE_OP_CREATE) at qemu/qemu_command.c:3824 3824 cpuDataFree(host->arch, data); As discussed with danpb this is fixed upstream commit 2ccc4a607f6e122aff2e3b9d133d6e6b4b661a1e Author: Jiri Denemark <jdenemar> Date: Wed Feb 15 12:18:25 2012 +0100 qemu: Fix segfault when host CPU is empty In case libvirtd cannot detect host CPU model (which may happen if it runs inside a virtual machine), the daemon is likely to segfault when starting a new qemu domain. It segfaults when domain XML asks for host (either model or passthrough) CPU or does not ask for any specific CPU model at all.